"In 2009, we will be upgrading our stats server such that the whole database will fit in RAM (this used to be the case, but FAH has gotten quite big over the last few years and the related databases require over 20GB). We expect that this new stats server should greatly speed up stats updates."
Source: http://fah-web.stanford.edu/cgi-bin/mai ... =userstats
Why not cache the DB using 64 GB CF SSD? (Instead of RAM).
I don't know how long it took for the DB to get to the size that it currently is, and I don't know how long F@H has been running for, but I would think that if the trend continues the way it is, that you'd probably be able to fill 64 GB in a few years. So unless, there's going to be plans to upgrade again at that time, otherwise, why not go with something like a 64 GB CF SSD.
I suppose you could always build the system out to be nearly a DB cache server (128 GB of RAM) and then stagger the DB updates and/or incremental updates using grouped transactional disk I/O.
*ponders*....
stats server upgrade
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I am currently folding just on the 5x GTX 460's for aprox. 70K PPD - Location: Salem. OR USA
Re: stats server upgrade
Wikipedia says folding has been running since Oct. 1st, 2000.
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Re: stats server upgrade
I was trying to stay away from wiki if I could, and going straight for the source. (Albeit, I didn't really look.)P5-133XL wrote:Wikipedia says folding has been running since Oct. 1st, 2000.
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Re: stats server upgrade
First published article: http://fah-web.stanford.edu/papers/SPScience2000.pdf
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Re: stats server upgrade
I'm asking about the whole DB cache thing cuz I was reading on Sun's website about how they're using CF SSDs now to cache frequently accessed used/files on their storage servers now. I just figured that this would be a perfect example of such an application since it's far easier to scale CF SSD storage than RAM. (And probably less costly per GB as well).
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- Posts: 2948
- Joined: Sun Dec 02, 2007 4:36 am
- Hardware configuration: Machine #1:
Intel Q9450; 2x2GB=8GB Ram; Gigabyte GA-X48-DS4 Motherboard; PC Power and Cooling Q750 PS; 2x GTX 460; Windows Server 2008 X64 (SP1).
Machine #2:
Intel Q6600; 2x2GB=4GB Ram; Gigabyte GA-X48-DS4 Motherboard; PC Power and Cooling Q750 PS; 2x GTX 460 video card; Windows 7 X64.
Machine 3:
Dell Dimension 8400, 3.2GHz P4 4x512GB Ram, Video card GTX 460, Windows 7 X32
I am currently folding just on the 5x GTX 460's for aprox. 70K PPD - Location: Salem. OR USA
Re: stats server upgrade
Check this thread out and look at my comment ...
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- Joined: Sun Jan 18, 2009 1:13 am
Re: stats server upgrade
thanks for the link.